ACST610-8FP

Overview

The ACST610-8FP is a logic-sensitive gate Triac from the ACS™/A.S.D® series, manufactured by STMicroelectronics. It features an 800 V repetitive off-state voltage and a maximum RMS on-state current of 6 A. The device operates within a junction temperature range of -40°C to +125°C and utilizes a TO-220FPAB through-hole package. Key electrical parameters include a maximum non-repetitive surge current of 45 A at 50 Hz and 47 A at 60 Hz. Gate triggering requirements are limited to a maximum current of 10 mA and a maximum voltage of 1 V, enabling direct microcontroller interface.

Feature Summary

• Sensitive gate architecture allows direct drive from microcontrollers with low gate current requirements.
• Integrated overvoltage protection structure absorbs inductive turn-off energy and withstands line transients.
• Snubberless operation capability for general-purpose AC switching when datasheet limits are respected.

Applications

• Washing machine drum motor control
• Refrigerator compressor control
• Dishwasher pump motor control
• Industrial systems-medium power loads

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number ACST610-8FP with official STMicroelectronics documentation. Confirm the specific suffix '8FP' corresponds to the TO-220FPAB package and 800V rating. Ensure compliance with RoHS3 specifications and check for any relevant engineering change notices (ECN) that may affect pinout or electrical characteristics prior to final design integration.

Selection Notes

Select this component for applications requiring high commutation dV/dt and dI/dt capabilities alongside integrated overvoltage protection. The sensitive gate option is suitable for designs needing direct microcontroller interfacing without additional level shifting. Verify that the 6 A RMS current rating and 800 V blocking voltage meet the specific load and line transient requirements of the target appliance or industrial system.

Part Context

This device belongs to the ACST series of rugged AC switches, serving as an alternative to conventional Triacs. The series integrates a Triac structure with a high-voltage clamping device to enhance reliability in appliance and industrial environments. The ACST610-8FP specifically addresses the 6 A current segment within the 800 V voltage range, offering improved noise immunity compared to standard devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Designers should consult official STMicroelectronics documentation for potential obsolescence notices or recommended upgrades within the ACS™ family before considering alternative sourcing strategies.